body {
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
  
  margin: 0;
  padding: 20px;
  background-color: #fff;
}

.container {
  width: max-content;
  margin: 40px auto;
  text-align: left;
}

.cell {
  display: inline-block;
  width: 80px;
  height: 30px;
  line-height: 30px;           /* 垂直居中 */
  text-align: center;         /* 水平居中 */
  border: 1.5px solid #0419fd;
  margin: 2px;
  padding: 0;
  background-color: #fff;
  box-sizing: border-box;     /* 防止边框影响宽度 */
}

.cell:hover {
  background-color: #007bff;
  color: white;
  transform: scale(1.05);
}